I saw a FB post about this new product that said:
Brewery Unveils 6-Pack Rings That Feed Sea Turtles Instead of Killing Them
(hmmm, not exactly true…)
I say it isn’t exactly true because I looked it up… The company exists (e6pr) and it is doing a great service to sea life, but they don’t claim to feed sea life, just not harm them while the product is biodegrading quickly – which is still a great idea in itself.
FROM THE WEBSITE:

A few different sizes

No more ‘harmful to wildlife’ plastic!

What the ‘bottom line’ people need to hear.
HOW THIS PRODUCT CAME TO BE
(from the website)
I HAVE NO IDEA WHAT THIS COSTS… BUT THESE BOTTLERS ARE USING IT.
I have no idea what it would cost to convert your manufacturing to this system, but you could ask them.
Here are companies already using the biodegradable rings. Maybe support them!
YAY! A GREAT IDEA! I HOPE IT SUCCEEDS AND MANY LIKE IT.
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Good! It’s about time these companies started thinking about something besides profits.